jQuery Grid Plugin - jqGrid

Hi,

I want to use the afterSbmit method when I am adding a row:

jQuery("#list1").jqGrid('navGrid','#pager1',

{edit:true, add:true, del:true, refresh: false, search: false}, //options

{height:280, reloadAfterSubmit:false}, // edit options

{height:280, // add options

reloadAfterSubmit:false,

closeAfterAdd: true,

afterSubmit: function(returned_data, posted_data){

alert(posted_data["db_name"]);

}

},

{reloadAfterSubmit:false} // del options

);

But when I am using the afterSubmit event I get an error... 

n is undefined

[Image Can Not Be Found]c.url:a(e).jqGrid("getGridParam","edit...me]&&this.formatter&&this.formatter== 

jquery....min.js (line 248

I am using the last version of jgrid. The alert is being displayed normally and after that I get the above error and the add window is not closing as it should! Any ideas? Thanks in advance...